Num1= input("num1:")
Num2 = input("num2:")
print(Num1,Num2)
operation = input("请输入(+、-、*、/):")
if operation =='+':
    result = int(Num1) + int(Num2)
    print(f"answer ={result} ")  
elif operation =='-':
    result = int(Num1) - int(Num2)
    print(f"answer ={result} ")  
elif operation == '*':
    result = int(Num1) * int(Num2) 
    print(f"answer ={result} ") 
elif operation =='/':
    if int(Num2) == 0 :
       print("你个傻笔，除数TM不能，不能为0")
      
    if int(Num2)!=0 :  
     result = int(Num1) / int(Num2)
     print(f"answer = {result}")
  